NOS Vintage Mack Trucks Brass Fuel Cap Vented 600007 21DJ08 Heavy Duty OEM 1987 For Sale - New and Used

For sale is a rare vintage Mack Trucks heavy-duty solid brass female threaded fuel tank saddle cap. This authentic OEM part features a heavy scalloped brass perimeter design and comes complete with its factory steel safety chain and internal tank retention crossbar. The bottom portion of its original vintage 1987 factory "Bulldog Parts" Allentown, PA plastic bag is included for authenticity.Specifications:Brand: Mack Trucks, Inc. / Velvac (Genuine OEM)Common Industry Cross-References: 600007 / 21DJ08Material: Solid cast heavy brass housingFitment Style: Female threaded interior wallNominal Neck Diameter Fitment: 2 inch nominal (Measures approximately 2-5/16 inches across inner threads)Thread Type: 11-1/2 National Pipe Strait Loose (NPSL)Venting: Integrated pressure/vacuum relief safety designHardware Included: Factory safety chain and heavy-duty horizontal cross-retention barCondition Notes (Guaranteed NOS / New Old Stock):Never Installed: This component is completely unused and has never been threaded onto a commercial vehicle fuel tank.The internal female brass threads are factory-pristine, sharp, and clean with absolutely zero cross-threading, wrench scoring, or fuel varnish residue.The safety chain is securely riveted to the center cap boss, and the retention crossbar is perfectly straight.The outer brass body displays beautiful, authentic age-related vintage oxidation patina from long-term shelf storage, adding perfect character for a classic truck restoration project. The original 1987 plastic bag tag backing strip is present but torn down to the label header.Vehicle Application:This heavy brass fuel cap is universally compatible with classic Mack dump trucks, semi-tractors, vocational commercial vehicles, and heavy-duty applications equipped with vintage 2-inch nominal unvented/vented side saddle fuel tanks.Please carefully verify your tank neck measurements (diameter and thread configuration) against your vehicle manual to ensure a perfect seal before purchasing.

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